n.(土壤)荒漠化；沙漠化
Overgrazing is the major cause of desertification worldwide. 过度放牧是全球荒漠化的主要的原因。
The sandstorms is caused by desertification. 沙尘暴是沙漠化造成的。
Turning cultivated land back into forests and pasture is a fundamental way to stem soil erosion and desertification in the long run. 从长远来看，退耕还林或退耕还牧都是阻止沙漠侵蚀和沙漠化的基本途径。
